Auto saved by Logseq
This commit is contained in:
parent
b134f5a121
commit
8af62810b6
|
@ -959,7 +959,7 @@
|
||||||
- LATER review lab2
|
- LATER review lab2
|
||||||
- LATER SQL join
|
- LATER SQL join
|
||||||
- LATER Block 2
|
- LATER Block 2
|
||||||
- LATER EER
|
- DONE EER
|
||||||
- Most useful additional concept of EER model:
|
- Most useful additional concept of EER model:
|
||||||
specialization/generalization.
|
specialization/generalization.
|
||||||
- Specialization
|
- Specialization
|
||||||
|
@ -1007,11 +1007,11 @@
|
||||||
- DONE Block 3
|
- DONE Block 3
|
||||||
- DONE DB transaction management
|
- DONE DB transaction management
|
||||||
- anomalies
|
- anomalies
|
||||||
- DONE ACID (Atomicity, Consistency, Isolation, Durability): A set of properties that guarantee the reliability and integrity of database transactions.
|
- DONE ACID (Atomicity, Consistency, Isolation, Durability): A set of properties that guarantee the reliability and integrity of database transactions. #flashcard
|
||||||
- Atomicity: The property that ensures a transaction is treated as a single, indivisible unit of work. It either executes all its operations successfully or rolls back to the initial state if any operation fails.
|
- Atomicity: :-> The property that ensures a transaction is treated as a single, indivisible unit of work. It either executes all its operations successfully or rolls back to the initial state if any operation fails.
|
||||||
- Consistency: The property that ensures a transaction transforms the database from one consistent state to another consistent state. It maintains data integrity and adheres to defined business rules.
|
- Consistency: :-> The property that ensures a transaction transforms the database from one consistent state to another consistent state. It maintains data integrity and adheres to defined business rules.
|
||||||
- Isolation: The property that ensures concurrent transactions do not interfere with each other. Each transaction operates in isolation until it completes, preventing interference or conflicts.
|
- Isolation: :-> The property that ensures concurrent transactions do not interfere with each other. Each transaction operates in isolation until it completes, preventing interference or conflicts.
|
||||||
- Durability: The property that ensures committed changes made by a transaction are permanently saved and will survive any subsequent system failures or crashes.
|
- Durability: :-> The property that ensures committed changes made by a transaction are permanently saved and will survive any subsequent system failures or crashes.
|
||||||
- DONE Concurrency control
|
- DONE Concurrency control
|
||||||
- DONE Meaning of serialisability.
|
- DONE Meaning of serialisability.
|
||||||
- DONE How locking can ensure serialisability.
|
- DONE How locking can ensure serialisability.
|
||||||
|
|
Loading…
Reference in a new issue